T05 · Unauthorized Access and Privilege Escalation
- Location
SKILL.md:4- Finding
Hard-Coded Telegram Recipient May Cause Unauthorized External Delivery
- Content
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Vulnerability Details
File Location:
SKILL.md, lines 4-18
Vulnerability Type: Hard-coded external recipient
Risk Level: MediumRelevant Skill Instructions
The relevant instructions, translated into English, are:
text Concurrently fetch multiple AI news sources, generate a structured daily report, and send it to the user. ... Send it to warrior on Telegram.Technical Analysis
The skill initially describes the intended recipient as the user, but its output configuration later directs the report to the hard-coded Telegram identity
warrior. It does not establish thatwarrioris the requesting user, obtain confirmation before transmission, or allow the recipient to be selected through trusted configuration.If the executing agent has access to a Telegram messaging tool, it may follow the more specific delivery instruction and transmit the generated report to this fixed external identity. This creates a recipient-confusion issue and violates least-privilege principles by directing the agent to use an external communication channel without validating the destination.
No credentials, private local files, or sensitive system information are explicitly requested by the skill. Consequently, the confirmed exposure is limited to the generated report and any contextual information that an implementing agent includes in that report.
Attack Path
- A user invokes the AI daily-brief skill.
- The agent retrieves content from the two configured public news websites.
- The agent generates a structured report from the retrieved content.
- The agent follows the hard-coded delivery instruction instead of deriving the recipient from the authenticated requesting user.
- If Telegram messaging capability is available, the report is sent to the Telegram identity
warrior. - The external recipient receives content without any documented validation that they are authorized to receive it.
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- Remediation
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Remediation Suggestions
- Remove the hard-coded Telegram identity
warrior. - Derive the destination from an authenticated, user-controlled configuration value.
- Require explicit confirmation of the resolved recipient before the first external transmission.
- Display the destination account and a preview of the information to be sent.
- Restrict report generation to public news content and prevent automatic inclusion of conversation history, credentials, local files, or system metadata.
- Enforce an allowlist of approved messaging destinations at the Telegram integration layer.
- Record recipient resolution and user authorization in an audit log without storing message secrets.
- Fail safely when no verified recipient is configured rather than falling back to a fixed account.
- Remove the hard-coded Telegram identity
